Results 11 to 20 of about 9,396 (179)

An Analysis of Tropical Transport: Influence of the Quasi-biennial Oscillation [PDF]

, 1997
An analysis of over 4 years of Upper Atmosphere Research Satellite (UARS) measurements of CH4, HF, O3, and zonal wind are used to study the influence of the quasi-biennial oscillation (QBO) on constituent transport in the tropics.
Andrews, Angell, Angell, Availone, Brühl, Chipperfield, Dunkerton, Dunkerton, Dunkerton, Eugene C. Cordero, Fishbein, Fleming, Funk, Hamiliton, Hasebe, Hasebe, Hervig, Hollandsworth, Holton, Jackman, Lait, Lindzen, Ling, Luo, Mark R. Schoeberl, Minschwaner, Mote, Nastrom, Naujokat, O'Sullivan, O'Sullivan, Oltmans, Ortland, Park, Park, Plumb, Plumb, Randel, Ray, Reed, Reed, Rosenfield, Rosenlof, Russell, S. Randolph Kawa, Schoeberl, Takahashi, Tung, Veryard, Zawodny   +49 more
core   +2 more sources

Extratropical signature of the quasi-biennial oscillation [PDF]

, 2005
Using the assimilated data from the National Centers for Environmental Prediction (NCEP) reanalysis, we show that the extratropical signature of the tropical quasi-biennial oscillation (QBO) is seen mostly in the North Annular Mode (NAM) of atmospheric ...
Feynman, Joan, Ruzmaikin, Alexander
core   +1 more source

Modulation of the Westerly and Easterly Quasi-Biennial Oscillation Phases on the Connection between the Madden–Julian Oscillation and the Arctic Oscillation

Atmosphere, 2020
Previous studies have revealed the relationship between the Madden−Julian oscillation (MJO) and the Arctic Oscillation (AO). The MJO phase 2/3 is followed by the positive AO phase, and the MJO phase 6/7 is followed by the negative AO phase.
Lei Song, Renguang Wu
doaj   +1 more source

High-frequency cyclicity in the Mediterranean Messinian evaporites: evidence for solar-lunar climate forcing [PDF]

, 2012
The deposition of varved sedimentary sequences is usually controlled by climate conditions. The study of two Late Miocene evaporite successions (one halite and the other gypsum) consisting of annual varves has been carried out to reconstruct the ...
Gennari, Rocco, Lugli, Stefano, Manzi, Vinicio, Roveri, Marco, Scafetta, Nicola, Schreiber, Charlotte B.   +5 more
core   +2 more sources

The global signal of the 11-year sunspot cycle in the atmosphere: When do we need the QBO?

Meteorologische Zeitschrift, 2003
The global structure and the size of the signal of the 11-year sunspot cycle in the stratosphere and troposphere was examined in earlier studies. The correlations between the solar cycle and heights and temperatures of and at different pressure levels ...
Karin Labitzke
doaj   +1 more source

Factors Influencing the Seasonal Flux of the Varved Sediments of Kusai Lake on the Northern Tibetan Plateau During the Last ∼2280 years

Frontiers in Earth Science, 2022
The varved sediments of Kusai Lake on the northern Tibetan Plateau are rhythmically laminated with the interaction of dark and light layers formed during winter and summer within a year.
Qi Zhang, Xingqi Liu, Shengnan Feng
doaj   +1 more source

Nonstationary Synchronization of Equatorial QBO with SAO in Observations and a Model [PDF]

, 2009
It has often been suggested that the period of the quasi-biennial oscillation (QBO) has a tendency to synchronize with the semiannual oscillation (SAO). Apparently the synchronization is better the higher up the observation extends. Using 45 yr of the 40-
Jiang, Xun, Kuai, Le, Shia, Run-Lie, Tung, Ka-Kit, Yung, Yuk L.   +4 more
core   +1 more source

Crucial role of obliquely propagating gravity waves in the quasi-biennial oscillation dynamics [PDF]

Atmospheric Chemistry and Physics
​​​​​​​In climate modelling, the reality of simulated flows in the middle atmosphere is largely affected by the model's representation of gravity wave processes that are unresolved, while these processes are usually simplified to facilitate computations.
Y.-H. Kim, Y.-H. Kim, G. S. Voelker, G. Bölöni, G. Zängl, U. Achatz   +5 more
doaj   +1 more source

An Analytical Study of Ozone Feedbacks on Kelvin and Rossby–Gravity Waves: Effects on the QBO [PDF]

, 1998
An equatorial beta-plane model of the middle atmosphere is used to analytically examine the effects of radiative cooling and ozone heating on the spatial and temporal evolution of the quasi-biennial oscillation (QBO).
Cordero, Eugene, Echols, Robert S., Nathan, Terrence R.   +2 more
core   +2 more sources

An exploration of the connection between quasi-biennial oscillation and Madden-Julian oscillation

Environmental Research Letters, 2021
Recent studies have shown arguments about the connection between stratospheric quasi‐biennial oscillation (QBO) and activities of Madden‐Julian oscillation (MJO) during boreal winter on interannual timescale, especially for the question of which aspects ...
Feiyang Wang, Lei Wang
doaj   +1 more source